Oil-burner



W. E. HUENEFELD.

OIL BURNER APPLICATlO N FILED AUGJI, 1919.

Patented Mar. 8, 1921.

2 SHEETS-SHEET I.

W. E. HUENEFELD.

OIL BURNER.

APPLICATION FILED ANAL-1919.

Patented Mar. 8, 1921.

2 SHEETS-SHEET 2 frzveniax" Wd/Ze/f. fluemfeld v WALTER E. HUENEFELD, OF CINCINNATI, OHIO.

OIL-BURNER.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed August 11, 1919. Serial No. 316,738.

To all whom it may concern Be it known that I, lVAL'rnn E. HUENE- FELD, a citizen of the United States, residing at the city of Cincinnati, county of Hamilton, and State of Ohio, have invented a certain new and useful Improvement in Oil- Burners, of which the following is a full, clear, and exact description, such as will onable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates generally to oil burners, and more particularly to a combustion chamber lifting device that is associated with the oil burner, and which lifting device operates automatically to lift the combustion chamber when the wick carrying mechanism of the burner is actuated to lower the wick or move the same downward into the oil reservoir of said burner. The automatic lifting of the combustion chamber and associated parts when the wick is lowered into its chamber or the oil reservoir of the burner is a very desirable result, for it will be understood that if the combustion chamber is permitted to remain or rest directly on top of the wick chamber or reservoir portion of the burner while the stove is out of service, a certain amount of oil, will, by capillary attraction. pass upward on portions of the surfaces of the perforated tubes of the combustion chamber with the result that smoke and objectionable odors are produced when the burner is relighted.

All oil burners of the type to which my invention relates are equipped with manually operable means for raising and lowering the wick, and it is the principal object of my invention to provide relatively simple and efficient means and arrange the same so that it will cooperate with the wick.

raising or lowering means to automatically raise the combustion chamber when the wick is lowered so that all parts of said combustion chamber are wholly spaced apart from the oil reservoir and wick chamber of the burner, consequently wholly eliminating the possibility of the passage of oil onto any portion of said combustion chamber.

Further objects of my invention are, to generally improve upon and simplify the construction of the existing types of combustion chamber lifting devices and to provide a device that is positive in operation, capable of being easily and cheaply manufactured, and very effective in performing its intended functions.

'\Vith the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts, hereinafter more fully described and claimed, and illustrated in the accompanying drawings, in which Figure 1 isan elevational view of a burner equipped with my improved combustion chamber lifting device with parts of said burner. in vertical section.

Fig. 2 is a vertical section taken approximately on the line 22 of Fig. 1.

Fig. 3 is a horizontal section taken on the line 33 of Fig. 2. Fig. l is a perspective view of parts of my improved combustion chamber lifting device, and showing their relation to parts of the burner and the wick raising and lowering means associated therewith.

Referring in detail to the accompanying drawings, it will be noted'that I have shown my improved combustion chamber lifting device associated with a burner that receives its oil from a supply tank or container 10.

through a supply pipe 11, the latter leading to the lowerportion of an annular wick chamber or receptacle 12. The tubular wick 13 positioned in the container 12 is supported by a suitable carrier 14, the latter be ing arranged for vertical movement within the container 12, and being supported by a cross bar 15. This cross bar is connected to the lower end of one of the legs of an inverted U-shaped bar 16, and the lower portion of the other leg of said bar is provided with a series of rack teeth 17 Journaled in a suitable bearing that is preferably carried by a part of the container 12, and on the undersidethereof, is

a shaft 18 provided on its inner end with a pinion 19 which meshes with rack teeth 17, and the outer end of said shaft is provided with a disk handle 20.

I make no claim to any of the parts or combination of parts just described.

The combustion chamber lifting device, as contemplated by my invention, and which is associated with the wick raising and lowering means just described includes a horizontally disposed lever 21 that is fulcrumed at- 22 to a leg 23, the latter being preferably fixed to and depending from a part of the container 12 and resting upon tube 11.

One end of the fulcrumed member 21 lies directly in the downward path of travel of an extension plate or bracket 24, that is carried by and projects from the leg of bar 16 that is provided with the rack teeth, said extension or bracket being located so that it engages and actuates the fulcrum member 21 only during the latter part of the downward travel of the wick carrier 14 and wick 13 into the wick receptacle 12.

An upright plate which is preferably curved in horizontal section so as to conform to the curvature of the receptacle 12 is arranged to slide vertically in suitable bearings formed on parts of the container 12 and the lower end of this plate is adapted to be engaged by lever 21 when the latter is tilted as a result of the downward movement of member 24. The upper portion of wall 29. The parts just described are held in assembled relation in any suitable manner, preferably by cross rods or pins such as 32. V

The length of member 25 is such that when it occupies its lowermost position of movement, the ring 26 on the upper end of said plate is positioned slightly below the perforated plate 31 of the combustion chamher and the latter rests directly on the seat formed by the upper portion of the wick receptacle.

While the burner is lighted and in service the lower parts ofthe combustion chamber just described rest directly upon the upper parts of the wick container or receptacle 12, as illustrated by dotted lines in Fig. 1, and when so positioned, the upper end of the wick projects slightly above the upper end of said wick receptacle, and the flame from said wick passes upward between the perforated walls 29 and 30. It will be understood that the wick is raised or lowered by proper manipulation of shaft 18 and that when the latter is rotated, the pinion 19 meshing with rack teeth 17 imparts upward or downward movement to the rod 16, and which latter carries transverse bar 15 that is connected to the wick carrier 14. l/Vhen the burner is extinguished, the handle 20 is manipulated so as to rotate shaft 18 and pinion 19, and effect a downward movement of rod 16 and parts associated therewith, which action moves the wick 13 downwardly into the receptacle 12, and during the latter part of the downward travel of the wick, the lower end of the extension 24 engages and bears downwardly on one end of the lever 21, thereby swinging the same upon its fulcrum and elevating the opposite end. As lever 21 is thus tilted, the end that is moving upwardly will engage the lower end of plate 25, thereby elevating the same and parts carried thereby and as this upward movement continues, the ring 26 on the upper end of said plate will engage the underside of the perforated plate 31 and move the same and the entire combustion chamber upwardly to the position illustrated by solid lines in Fig. 1. lVhen so positioned, the parts of the combustion chamber are wholly spaced apart from the upper end of the receptacle 12 and associated parts, and consequently oil cannot pass by capillary attraction onto any portion of said combustion chamber.

Thus it will be seen that I have produced a relatively simple and eflicient combustion chamber lifting device that is associated directly with the wick raising and lowering means, and that when the latter is operated to raise the wick to a position for use, the combustion chamber will be automatically lowered so as to keep its proper position relative to said wick, and that when the wick is lowered to extinguish the burner, the combustion chamber will be elevated so as to be entirely spaced apart from the wick and the receptacle therefor.

I am aware that patents have been granted on combustion chamber lifting devices wherein the lifting means is directly connected to the rotating shaft or spindle of the wick raising and lowering means, but in so far as I am aware I am the first to provide a lifting device that is automatically actuated directly from the wick carrier or conjoined parts. The member 24 that is formed on or fixed to the vertically movable rod 16 occupies the same relative position at all times, and by such arrangement the elerating of the combustion chamber is always effected at the same time on the downward movement of the wick carrier, that is, during the latter portion of the downward travel of said wick carrier. Thus the elevating of the combustion chamber is always effected at the same time regardless of the length of the wick. 7

An oil burner combustion chamber lifting device of myimproved construction is relatively simple, can be easily and cheaply manufactured, is entirely automatic in operation, and very effective in performing its intended functions.

It will be readily understood that minor changes in the size, form and construction of the various parts of my improved combustion chamber lifting device may be made and substituted for those herein shown and described, without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim:

1. The combination with an oil burner and the manually operable wick raising and lowering means associated therewith, of an oil supply pipe leading to the lower portion of said burner, a support for the burner combustion chamber, a support resting upon the oil supply pipe beneath said burner, a horizontally disposed lever fulcruined on said support, one end portion of which lever is disposed beneath said combustion chamber support and the opposite end portion being positioned in the clownward path of travel of a vertically moving part of the wick raising and lowering means.

2. The combination with an oil burner and the manually operable wick raising and lowering mechanism associated therewith, of an oil supply pipe leadingto the lower portion of said burner, a support for the combustion chamber, which support is mounted for vertical movement, a support resting upon the oil supply pipe beneath said burner, a. horizontally disposed lever fulcrumed on said support, one end portion of which lever is disposed beneath said combustion chamber, and means carried by a vertically movable part of the wick raising and lowering mechanism, which means is adapted to engage on its downward movement the other end portion of said fulerumed member.

3. The combination with an oil burner and the manually operable wick raising and lowering means associated therewith, of an oil supply pipe leading to the lower portion of said burner, a support for the combustion chamber, which support is arranged for vertical movement relative to the wick receptacle of the burner, a support resting on the oil supply pipe, a horizontally disposed lever fulcrumed on said support, one end of which lever extends beneath the vertically movable support for the combustion chamber, and a member adapted to be engaged by a part of the wick raising and lowering means on its downward movement for engaging the lever to swing the same upon its fulcrum and elevate the support for the combustion chamber.

In testimony whereof I hereunto aflix my signature this 8th day of August, 1919.

WALTER E. HUENEFELD, 

